문자와 식 전체 문제

Use the Commutative and Associative Properties

In the following exercises, use the associative property to simplify.

$(n+17)+33$

In the following exercises, simplify.

$\frac{1}{2}+\frac{7}{8}+\left(-\,\frac{1}{2}\right)$

In the following exercises, simplify.

$\frac{2}{5}+\frac{5}{12}+\left(-\,\frac{2}{5}\right)$

In the following exercises, simplify.

$\frac{3}{20}\cdot \frac{49}{11}\cdot \frac{20}{3}$

In the following exercises, simplify.

$\frac{13}{18}\cdot \frac{25}{7}\cdot \frac{18}{13}$

In the following exercises, simplify.

$-24\cdot 7\cdot \frac{3}{8}$

In the following exercises, simplify.

$-36\cdot 11\cdot \frac{4}{9}$

In the following exercises, simplify.

$\left(\frac{5}{6}+\frac{8}{15}\right)+\frac{7}{15}$

In the following exercises, simplify.

$\left(\frac{11}{12}+\frac{4}{9}\right)+\frac{5}{9}$

In the following exercises, simplify.

17(0.25)(4)

In the following exercises, simplify.

36(0.2)(5)

In the following exercises, simplify.

2.48(12)

In the following exercises, simplify.

9.731(4)

In the following exercises, simplify.

7(4a)

In the following exercises, simplify.

9(8w)

In the following exercises, simplify.

$-15(5m)$

In the following exercises, simplify.

$-23(2n)$

In the following exercises, simplify.

$12\left(\frac{5}{6}p\right)$

In the following exercises, simplify.

$20\left(\frac{3}{5}q\right)$

In the following exercises, simplify.

$43m+(-12n)+(-16m)+(-9n)$